The Schneider Electric Masterpact NSX250N is a three-pole, 160A molded case circuit breaker (MCCB) from the premium Masterpact NSX range. The "N" suffix denotes its Standard breaking capacity, and it is equipped with a Micrologic 2.2 electronic trip unit.
Parameters:
Parameter Value / Description
Product Line / Frame Size Masterpact NSX250
Rated Current (In) 160 A (Set and protected by the installed Micrologic 2.2 trip unit).
Number of Poles 3
Breaking Capacity Standard (N Rating).
Rated Ultimate Breaking Capacity (Icu) Typically 50 kA at 415V AC (IEC 60947-2). (Confirm for specific voltage).
Rated Service Breaking Capacity (Ics) 100% of Icu (IEC 60947-2).
Rated Operational Voltage (Ue) Up to 690 V AC
Trip Unit Micrologic 2.2 Electronic Trip Unit.
• Protection Functions: Long-time (L), Short-time (S), Instantaneous (I). Ground fault (G) protection is NOT included in the standard 2.2 unit.
• Features: Basic load monitoring via a 4-digit LCD display (shows phase current, max. current), fully adjustable settings for L, S, I protection, ambient temperature compensation.
Communication Not embedded. Can be optionally equipped with a separate communication module (e.g., COM, OFC) for integration into monitoring systems.
Standard IEC 60947-2
Mounting Withdrawable (standard racking mechanism) or Fixed.
Connection Front or Rear (depends on the kit).
Width Approx. 165 mm (for a 3-pole withdrawable unit).